- update to 0.5.0:
* Change `RealEncoder.supportIndefLenMode` type to a boolean
* Fix CI for py39 test environment
* Replace all snmplabs.com links
* Use correct SPDX identifier for the license
* Re-add ``tagMap`` and ``typeMap`` module level attributes to all
encoder and decoder modules. They are aliases for ``TAG_MAP`` and
``TYPE_MAP``
* Restore API for passing for ``tagMap`` and ``typeMap`` arguments
to ``Encoder`` and ``Decoder`` classes by name and position,
* Re-add ``tagMap`` and ``typeMap`` module level attributes to all
encoder and decoder modules. They are aliases for ``TAG_MAP`` and
``TYPE_MAP``
* Restore API for passing for ``tagMap`` and ``typeMap`` arguments
to ``Encoder`` and ``Decoder`` classes by name and position,
* Make BER/CER/DER decoders streaming and suspendible